foolish单词相关例句：
One cannot do a foolish thing once in one's life, but one must hear of it a hundred times. 为人一生一件蠢事也不做，但要听到上百遍蠢事。
It's very foolish to play around with guns.
这样玩枪是很蠢的！

It is foolish not to invest in stocks, so I will show her how to be bearish without them too, if she chooses.

不投资股票是愚蠢的，因此如果她选择股票，我会向她展示怎样在没有长期潜力的情况下进行卖空。

I felt rather foolish when I couldn't answer the teacher's question.

当我回答不出老师的提问时，我觉得自己很愚蠢。

The foolish boy flouted his mother's advice.

这个愚蠢的孩子轻视他母亲的忠告。

The sybarite (or sensualist) thinks that he's living, but he's nothing but a puppet without a will to be free, a foolish slave that exhibits his own chains.

纵欲好色者认为他是在享受生活，但如果没有自由的意愿，他不比傀儡更多些什么，一个愚蠢的奴隶在展示着他自己的枷锁。

His foolish behaviour may jeopardise his whole future.

他的愚蠢行为可能会危及他的整个前途。

Tom is more foolish than stupid. 与其说汤姆笨，倒不如说他傻。
He was so foolish as to leave his car unlocked. 他是那样傻，竟然没锁车。
He is too foolish to understand this. 他太蠢，不会明白这一点。
stupid单词相关例句：
When stupid man is doing something he is ashamed of, he always declares that it is his duty. 蠢人做件羞愧事，总说义不容辞。
When a stupid man is doing something he is ashamed of ,he always declared that it is his duty.——George Bernard Shaw, British dramatis当一个笨人做一件使他感到羞耻的事，他总宣称他在执行任务。英国剧作家  肖伯纳.G.
The stupid donkey couldn’t even work out this easy math problem.
这只蠢驴连这么简单的问题都算不出来。

I wish these stupid donkeys would all stop staring at me!
我真希望这些蠢驴不要再盯着我了！

The math teacher made a stupid mistake.
数学老师犯了个很愚蠢的错误。

It is unbelievable how stupid he is.

他真是笨得令人难以置信。

His stupid remarks triggered off a strike.

他说的蠢话引发了一场罢工。

It is stupid to do such a thing.

做这种事真蠢。

It is stupid of you to write down everything (that) the teacher says.
When I realized what stupid mistake I had made, I felt like a fool. 当我发现我犯了个愚蠢的错误是，我觉得仿佛是个傻子。
silly单词相关例句：
Dawted [= petted] daughters make daidling [= silly ]wives. 娇生惯养的姑娘,只会成为傻里傻气的婆娘.
That silly monkey is always so curious.
这个蠢猴子什么时候都这么好奇。

How could you come up with such a silly idea?
你怎么想出（抢银行）这个蠢主意的？

He has no commonsense he always does silly things.

他毫无常识，总是做些傻事。

I look pretty silly in this dress.

我穿这件衣服显得很傻。

She told him what a silly boy he was. 她告诉他是个多么蠢的孩子。
Only then did I recognize what silly mistakes I had made. 只是在那时我才意识到我犯了多么愚蠢的错误。(what在宾语从句中作定语)
Don't do anything silly such as marry him. 不要做什么蠢事，比如说去嫁给他。
It was silly of us to believe him.　我们真愚蠢，竟然相信了他。
Rarely have I heard of such a silly thing.